Answer:
Allusion
Explanation:
Allusion is the name given to a rhetorical device in which an author makes a reference to a topic from a different context. This reference is usually indirect and the readers are responsible for making the connection between the two. In this case, the author makes an allusion to Nicholas Ridley, an English Bishop and martyr, burned alive on October 16, 1555.
Subordinate clause
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The answer should be B. Hope this helps.